ClippingMagic, A Simple Browser Tool For Removing Unwanted Parts of an Image
ClippingMagic is a browser-based tool created by James Diebel and Jacob Norda that allows users to remove unwanted parts of an image — for example the background — using simple red and green masking brushes. Users can then save the edited image and share a download link with others. ClippingMagic is currently in Alpha, and its creators are working to improve functionality with hair, blurry boundaries, and other visually complicated scenarios.
via Matt Cutts